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Abstract
Stellaria ruderalis (Caryophyllaceae) is an annual herb of the S. media group, recently described in Central Europe and later discovered in other regions of the continent and beyond. Here, we provide novel data on its occurrence in the Caucasus Biodiversity Hotspot, where the species has not been collected since its description as new to science. Stellaria ruderalis was discovered at 14 sites in eastern and central Georgia (2022–2023) and northern Armenia (2023). It inhabited various ruderal habitats as well as deciduous and mixed forests. It is presumably a common component of the regional flora, although overlooked to date.
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Copyright (c) 2025 Pavel Novák, Vojtěch Taraška, Veronika Kalníková, Petr Hubatka, Jaroslav Rohel, George Fayvush
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References
- Bomble, F.W., 2021: Stellaria ruderalis im westlichen Rheinland. Jahrbuch des Bochumer Botanischen Vereins 12, 28–36.
- Euro+Med, 2006-2023: Euro+Med PlantBase – the information resource for Euro-Mediterranean plant diversity. Retrieved December 12, 2023 from http://www.europlusmed.org
- El Mokni, R., del Guacchio, E., Iamonico, D., 2023: Further insights into the Stellaria media aggregate (Caryophyllaceae, Alsinoideae, Alsineae) in Africa: first reports of S. ruderalis in North Africa and S. cupaniana in Tunisia, with nomenclatural notes on the name Alsine cupaniana. Phytotaxa 584, 264–274. 10.11646/phytotaxa.584.4.3
- Fick, S.E., Hijmans, R.J., 2017: WorldClim 2: new 1km spatial resolution climate surfaces for global land areas. International Journal of Climatology, 37, 4302–4315. https://doi.org/10.1002/joc.5086
- IUCN, 2024: Standards and Petitions Committee. Guidelines for Using the IUCN Red List Categories and Criteria. Version 16. Prepared by the Standards and Petitions Committee. Retrieved March 24, 2024 from https://www.iucnredlist.org/documents/RedListGuidelines.pdf
- Kikodze, D., Memiadze, N., Kharazishvili, D., Manvelidze, Z., Müller-Schärer, H., 2010: The alien flora of Georgia. 2nd ed. Joint SNSF SCOPES and FOEN publication, Ascona and Tbilisi.
- Lepší, M., Lepší, P., Koutecký, P., Lučanová, M., Koutecká, E., Kaplan, Z., 2019: Stellaria ruderalis, a new species in the Stellaria media group from central Europe. Preslia 91, 391–420. https://doi.org/10.23855/preslia.2019.391
- Mittermeier, R.A., Robles Gil, P., Hoffmann, M., Pilgrim, J., Brooks, T., Goettsch Mittermeier, C., Lamoreux, J., Da Fonseca, G.A.B., 2004: Hotspots revisited: Earth's biologically richest and most endangered terrestrial ecoregions. CEMEX, Mexico City.
- Mucina, L., Bültman, H., Dierssen, K., Theurillat, J.-P., Dengler,J., Čarni, A., Šumberová, K., Raus, T., Di Pietro, R., Gavilán Garcia, R., Chytrý, M., Iakushenko, D., Schaminée, J.H.J., Bergmeier, E., Santos Guerra, A., Daniëls, F.J.A., Ermakov, N., Valachoviĉ, M., Pigantti, S., Rodwell, J.S., Pallas, J., Capelo, J., Weber, H.E., Lysenko, T., Solomeshch, A., Dimopoulos, P., Aguiar, C., Freitag, H., Hennekens, S.M., Tichý, L., 2016: Vegetation of Europe: Hierarchical floristic classification system of plant, lichen, and algal communities. Applied Vegetation Science 19(S1), 3–264. https://doi.org/10.1111/avsc.12257
- Novák, P., Kalníková, V., Szokala, D., Aleksanyan, A., Batsatsashvili, K., Fayvush, G., Kolbaia, S., Nakhutsrishvili, S., Sedláček, V., Štěrba, T., Zukal, D., 2023: Transcaucasian Vegetation Database–a phytosociological database of the Southern Caucasus. Vegetation Classification and Survey 4, 231–240. https://doi.org/110.3897/VCS.105521
- Novikov, A., Sup-Novikova, M., Pachschwöll, C., 2020: Stellaria ruderalis M. Lepší, P. Lepší, Z. Kaplan et P. Koutecký, a new species record for the flora of Ukraine. Webbia 75, 355–358. https://doi.org/10.36253/jopt-9613
- Peterson, D., 1936: Stellaria Studien. Zur Zytologie, Genetik, Ökologie und Systematik der Gattung Stellaria, insbesondere der media-Gruppe. Botaniska Notiser 88, 281–419.
References
Bomble, F.W., 2021: Stellaria ruderalis im westlichen Rheinland. Jahrbuch des Bochumer Botanischen Vereins 12, 28–36.
Euro+Med, 2006-2023: Euro+Med PlantBase – the information resource for Euro-Mediterranean plant diversity. Retrieved December 12, 2023 from http://www.europlusmed.org
El Mokni, R., del Guacchio, E., Iamonico, D., 2023: Further insights into the Stellaria media aggregate (Caryophyllaceae, Alsinoideae, Alsineae) in Africa: first reports of S. ruderalis in North Africa and S. cupaniana in Tunisia, with nomenclatural notes on the name Alsine cupaniana. Phytotaxa 584, 264–274. 10.11646/phytotaxa.584.4.3
Fick, S.E., Hijmans, R.J., 2017: WorldClim 2: new 1km spatial resolution climate surfaces for global land areas. International Journal of Climatology, 37, 4302–4315. https://doi.org/10.1002/joc.5086
IUCN, 2024: Standards and Petitions Committee. Guidelines for Using the IUCN Red List Categories and Criteria. Version 16. Prepared by the Standards and Petitions Committee. Retrieved March 24, 2024 from https://www.iucnredlist.org/documents/RedListGuidelines.pdf
Kikodze, D., Memiadze, N., Kharazishvili, D., Manvelidze, Z., Müller-Schärer, H., 2010: The alien flora of Georgia. 2nd ed. Joint SNSF SCOPES and FOEN publication, Ascona and Tbilisi.
Lepší, M., Lepší, P., Koutecký, P., Lučanová, M., Koutecká, E., Kaplan, Z., 2019: Stellaria ruderalis, a new species in the Stellaria media group from central Europe. Preslia 91, 391–420. https://doi.org/10.23855/preslia.2019.391
Mittermeier, R.A., Robles Gil, P., Hoffmann, M., Pilgrim, J., Brooks, T., Goettsch Mittermeier, C., Lamoreux, J., Da Fonseca, G.A.B., 2004: Hotspots revisited: Earth's biologically richest and most endangered terrestrial ecoregions. CEMEX, Mexico City.
Mucina, L., Bültman, H., Dierssen, K., Theurillat, J.-P., Dengler,J., Čarni, A., Šumberová, K., Raus, T., Di Pietro, R., Gavilán Garcia, R., Chytrý, M., Iakushenko, D., Schaminée, J.H.J., Bergmeier, E., Santos Guerra, A., Daniëls, F.J.A., Ermakov, N., Valachoviĉ, M., Pigantti, S., Rodwell, J.S., Pallas, J., Capelo, J., Weber, H.E., Lysenko, T., Solomeshch, A., Dimopoulos, P., Aguiar, C., Freitag, H., Hennekens, S.M., Tichý, L., 2016: Vegetation of Europe: Hierarchical floristic classification system of plant, lichen, and algal communities. Applied Vegetation Science 19(S1), 3–264. https://doi.org/10.1111/avsc.12257
Novák, P., Kalníková, V., Szokala, D., Aleksanyan, A., Batsatsashvili, K., Fayvush, G., Kolbaia, S., Nakhutsrishvili, S., Sedláček, V., Štěrba, T., Zukal, D., 2023: Transcaucasian Vegetation Database–a phytosociological database of the Southern Caucasus. Vegetation Classification and Survey 4, 231–240. https://doi.org/110.3897/VCS.105521
Novikov, A., Sup-Novikova, M., Pachschwöll, C., 2020: Stellaria ruderalis M. Lepší, P. Lepší, Z. Kaplan et P. Koutecký, a new species record for the flora of Ukraine. Webbia 75, 355–358. https://doi.org/10.36253/jopt-9613
Peterson, D., 1936: Stellaria Studien. Zur Zytologie, Genetik, Ökologie und Systematik der Gattung Stellaria, insbesondere der media-Gruppe. Botaniska Notiser 88, 281–419.